Quiz 2 Muscles 1-4 Flashcards
1
Q
Buccinator origin
A
Maxilla and mandible
2
Q
Buccinator insertion
A
Orbicularis oris
3
Q
Buccinator action
A
Compresses cheeks
4
Q
Pectoralis Major origin
A
Clavicle, sternum, and coastal cartilages of the upper rib
5
Q
Pectoralis Major insertion
A
Greater tubercle
6
Q
Pectoralis major action
A
Flexes shoulder, adducts humerus
7
Q
Trapezius origin
A
Occipital bone, spinous process of c7, and all thoracic vertebrae
8
Q
Trapezius insertion
A
Acromial extremity of clavicle, scapular spine
9
Q
Trapezius action
A
Elevates and adducts scapula
10
Q
Sternocleidomastoid origin
A
Clavicle
11
Q
Sternocleidomastoid insertion
A
Mastoid process
12
Q
Sternocleidomastoid action
A
Flexes neck, head to shoulder
